Add generator option for newlines between statements (#96)

* Add new ScriptGeneratorOption for the number of newlines between statements

* Add test for new generator option

Author: Stefan-Puskarica

SqlScriptDom/ScriptDom/SqlServer/ScriptGenerator/SqlScriptGeneratorVisitor.StatementList.cs

@@ -23,7 +23,10 @@ public override void ExplicitVisit(StatementList node)
                     }
                     else
                     {
-                        NewLine();
+                        for (var i = 0; i < _options.NumNewlinesAfterStatement; i++)
+                        {
+                            NewLine();
+                        }
                     }
 
                     GenerateFragmentIfNotNull(statement);

SqlScriptDom/ScriptDom/SqlServer/Settings/SqlScriptGeneratorOptions.xml

@@ -28,6 +28,9 @@
       <Description>IncludeSemiColons_Description</Description>
       <Summary>Gets or sets a boolean indicating if a semi colon should be included after each statement</Summary>
     </Setting>
+    <Setting name="NumNewlinesAfterStatement" type="int" default="1" min="0">
+      <Summary>Gets or sets the number of newlines to include after each statement</Summary>
+    </Setting>
   </SettingGroup>
   <SettingGroup name="CREATE TABLE">
     <Setting name="AlignColumnDefinitionFields" type="bool" default="true">

Test/SqlDom/ScriptGeneratorTests.cs

@@ -4,6 +4,7 @@
 // </copyright>
 //------------------------------------------------------------------------------
 
+using System;
 using Microsoft.SqlServer.TransactSql.ScriptDom;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
 using SqlStudio.Tests.AssemblyTools.TestCategory;
@@ -113,5 +114,48 @@ public void TestSqlServerlessScriptGenerator()
             var scriptGenerator = new SqlServerlessScriptGenerator(options);
             Assert.AreEqual(SqlVersion.Sql160, scriptGenerator.Options.SqlVersion);
         }
+
+        [TestMethod]
+        [Priority(0)]
+        [SqlStudioTestCategory(Category.UnitTest)]
+        public void TestNewlinesBetweenStatementsGeneratorOption() {
+            var tableName = new SchemaObjectName();
+            tableName.Identifiers.Add(new Identifier { Value = "TableName" });
+
+            var tableStatement = new CreateTableStatement
+            {
+                SchemaObjectName = tableName
+            };
+            var tableStatementString = "CREATE TABLE TableName;";
+
+            var statements = new StatementList();
+            statements.Statements.Add(tableStatement);
+            statements.Statements.Add(tableStatement);
+
+            var generatorOptions = new SqlScriptGeneratorOptions {
+                KeywordCasing = KeywordCasing.Uppercase,
+                IncludeSemicolons = true,
+                NumNewlinesAfterStatement = 0
+            };
+
+            var generator = new Sql80ScriptGenerator(generatorOptions);
+
+            generator.GenerateScript(statements, out var sql);
+
+            Assert.AreEqual(tableStatementString + tableStatementString, sql);
+
+            generatorOptions.NumNewlinesAfterStatement = 1;
+            generator = new Sql80ScriptGenerator(generatorOptions);
+
+            generator.GenerateScript(statements, out sql);
+
+            Assert.AreEqual(tableStatementString + Environment.NewLine + tableStatementString, sql);
+
+            generatorOptions.NumNewlinesAfterStatement = 2;
+            generator = new Sql80ScriptGenerator(generatorOptions);
+
+            generator.GenerateScript(statements, out sql);
+            Assert.AreEqual(tableStatementString + Environment.NewLine + Environment.NewLine + tableStatementString, sql);
+        }
     }
 }